In Example 4, change the before 4x to Data from Example 4 Find the slope and the y intercept of the straight line for which the equation is 2y 4x 5 0 We write this equation in slope intercept form Because the coefficient of x in this form is 2, the slope is 2 The constant on the right is 5 2, which means that the y intercept is (0, 5 2) See Fig 21 23 2y 4x 5 slope y 2x 400 y coordinate of intercept

Question: In Example 4, change the + before 4x to . Data from Example 4 Find the slope and the y-intercept of the straight line for

In Example 4, change the + before 4x to −.

Data from Example 4

Find the slope and the y-intercept of the straight line for which the equation is 2y + 4x − 5 = 0. We write this equation in slope-intercept form:

2y = - 4x + 5 slope y = -2x + 400

Because the coefficient of x in this form is −2, the slope is −2. The constant on the right is 5/2, which means that the y-intercept is (0, 5/2). See Fig. 21.23.

y-coordinate of intercept

2y = - 4x + 5 slope y = -2x + 400 y-coordinate of intercept

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